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Displaying AFOS PIL: SWOMCD Product Timestamp: 2003-05-06 15:32 UTC
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111 ACUS11 KWNS 061533 SWOMCD SPC MCD 061532 ARZ000-MOZ000-OKZ000-061730- MESOSCALE DISCUSSION 0787 NWS STORM PREDICTION CENTER NORMAN OK 1032 AM CDT TUE MAY 06 2003 AREAS AFFECTED...E OK/NW AR CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 061532Z - 061730Z SCATTERED THUNDERSTORMS WILL LIKELY DEVELOP ACROSS ERN OK BY EARLY AFTERNOON. CONVECTION WILL HAVE THE POTENTIAL FOR LARGE HAIL...DAMAGING WINDS OR TORNADOES. TORNADO POTENTIAL WILL INCREASE BY LATE AFTERNOON. WW MAY BE NECESSARY LATE THIS MORNING OR EARLY THIS AFTERNOON ACROSS ERN OK/FAR NWRN AR. STATIONARY FRONT EXTENDED ENE OF A SURFACE LOW OVER CNTRL OK. DEWPOINTS WERE IN THE LOWER 70S S OF THE FRONT. TEMPERATURES AT 15Z WERE ALREADY AROUND 80. MID-LEVEL JET WITH THE LEADING EDGE OF DRYER AIR CONTAINED STEEP LAPSE RATES OF 8.5 C/KG...WHILE SFC HEATING IS INCREASING INSTABILITY. MLCAPE VALUES RANGED BETWEEN 3000 AND 4000 J/KG ACROSS ERN OK. RAPID DEVELOPMENT OF CONVECTION APPEARS LIKELY ALONG THE INSTABILITY AXIS LATER THIS MORNING OR EARLY THIS AFTERNOON. STRONG INSTABILITY...STEEP LAPSE RATES AND DEEP LAYER SHEAR OF 55 KT SUGGEST STORMS WILL BECOME SUPERCELLULAR. CONVECTION WILL HAVE THE POTENTIAL FOR LARGE HAIL AND OR DAMAGING WINDS. IN ADDITION...LOW-LEVEL JET ACROSS ERN OK AND WRN AR WILL MAKE A FEW TORNADOES LIKELY ACROSS ERN OK THIS AFTERNOON. WW WILL LIKELY BE NECESSARY BY 19Z. ..BROYLES.. 05/06/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LZK...SGF...SHV...TSA...OUN... 34089575 34329663 35529659 36299651 36729606 36919562 36919485 36849414 36399372 35069397 34159455
000 ACUS11 KWNS 061533 SWOMCD SPC MCD 061532 ARZ000-MOZ000-OKZ000-061730- MESOSCALE DISCUSSION 0787 NWS STORM PREDICTION CENTER NORMAN OK 1032 AM CDT TUE MAY 06 2003 AREAS AFFECTED...E OK/NW AR CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 061532Z - 061730Z SCATTERED THUNDERSTORMS WILL LIKELY DEVELOP ACROSS ERN OK BY EARLY AFTERNOON. CONVECTION WILL HAVE THE POTENTIAL FOR LARGE HAIL...DAMAGING WINDS OR TORNADOES. TORNADO POTENTIAL WILL INCREASE BY LATE AFTERNOON. WW MAY BE NECESSARY LATE THIS MORNING OR EARLY THIS AFTERNOON ACROSS ERN OK/FAR NWRN AR. STATIONARY FRONT EXTENDED ENE OF A SURFACE LOW OVER CNTRL OK. DEWPOINTS WERE IN THE LOWER 70S S OF THE FRONT. TEMPERATURES AT 15Z WERE ALREADY AROUND 80. MID-LEVEL JET WITH THE LEADING EDGE OF DRYER AIR CONTAINED STEEP LAPSE RATES OF 8.5 C/KG...WHILE SFC HEATING IS INCREASING INSTABILITY. MLCAPE VALUES RANGED BETWEEN 3000 AND 4000 J/KG ACROSS ERN OK. RAPID DEVELOPMENT OF CONVECTION APPEARS LIKELY ALONG THE INSTABILITY AXIS LATER THIS MORNING OR EARLY THIS AFTERNOON. STRONG INSTABILITY...STEEP LAPSE RATES AND DEEP LAYER SHEAR OF 55 KT SUGGEST STORMS WILL BECOME SUPERCELLULAR. CONVECTION WILL HAVE THE POTENTIAL FOR LARGE HAIL AND OR DAMAGING WINDS. IN ADDITION...LOW-LEVEL JET ACROSS ERN OK AND WRN AR WILL MAKE A FEW TORNADOES LIKELY ACROSS ERN OK THIS AFTERNOON. WW WILL LIKELY BE NECESSARY BY 19Z. ..BROYLES.. 05/06/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LZK...SGF...SHV...TSA...OUN... 34089575 34329663 35529659 36299651 36729606 36919562 36919485 36849414 36399372 35069397 34159455